Synthesis and characterization of SBA-15 nanocomposite modified by natural polyphenol tannin for the removal of AB62 from aqueous media: adsorption isotherm, kinetic and thermodynamic studies

Alireza Golshan-Taftia Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

Abosaeed Rashidia Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

Mohammad Esmail Yazdanshenasb Department of Textile Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran

Habib-Allah Tayebic Department of Textile Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, IranCorrespondence[email protected]

Ehsan Binaeiand Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran

Abstract

In this study, tannin immobilized SBA-15 (Tan@SBA-15-NH₂) as a novel adsorbent was synthesized and used for removal of acid blue 62 (AB62) from aqueous media. The synthesized composite was characterized by different methods such as FT-IR, XRD, BET, SEM, EDX and TEM. Effect of some parameters such as pH, adsorbent dosage and contact time for removal of AB62 were examined and optimized. The Langmuir isotherm and pseudo-second order kinetic model were very compatible with the equilibrium and kinetic data and maximum adsorption capacity of 1000 mg/g was achieved.

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Synthesis and characterization of SBA-15 nanocomposite modified by natural polyphenol tannin for the removal of AB62 from aqueous media: adsorption isotherm, kinetic and thermodynamic studies

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Synthesis and characterization of SBA-15 nanocomposite modified by natural polyphenol tannin for the removal of AB62 from aqueous media: adsorption isotherm, kinetic and thermodynamic studies

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